Re: [PATCH v2] can: tcan4x5x: Turn on the power before parsing the config

[Marc Kleine-Budde]

On 12/10/19 5:32 PM, Dan Murphy wrote:
> The parse config function now performs action on the device either
> reading or writing and a reset.  If the regulator is managed it needs
> to be turned on.  So turn on the regulator if available if the parsing
> fails then turn off the regulator.

Another BTW:
Consider converting the switching of the vsup to runtime_pm.

Yet another one:
Why do you disable the clocks in the error path of tcan4x5x_can_probe(),
but never enable them?

> out_clk:
> 	if (!IS_ERR(mcan_class->cclk)) {
> 		clk_disable_unprepare(mcan_class->cclk);
> 		clk_disable_unprepare(mcan_class->hclk);
> 	}

- please move the clock handling from the m_can.c to the individual
  driver
- please move the clock handling to runtime_pm in the individual driver
- remove the obsolete m_can_class_get_clocks()
- make runtime_pm mandatory

regards,
Marc

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Pengutronix e.K.                 | Marc Kleine-Budde           |
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